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Location Spain, Castilla y León
Central coordinates 3o 35.00' West  41o 32.00' North
IBA criteria A4ii, B1iii, B2, C2, C6
Area 9,400 ha
Altitude 864 - 1,166m
Year of IBA assessment 2000

SEO/BirdLife



Site description A limestone canyon with Populus plantations, small woods of Quercus and Juniperus, open scrub, grassland and cultivation.

Key Biodiversity This is an important area for cliff-nesting raptors.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Egyptian Vulture Neophron percnopterus breeding  1993  19 breeding pairs  good  B2, C6  Endangered 
Griffon Vulture Gyps fulvus resident  1995  336 breeding pairs  good  A4ii, B1iii, B2, C2, C6  Least Concern 
Griffon Vulture Gyps fulvus winter  1995  740-790 individuals  good  A4ii, B1iii, C2  Least Concern 
Dupont's Lark Chersophilus duponti resident  1992  150 breeding pairs  medium  B2, C2, C6  Near Threatened 

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
HOCES DEL RÍO RIAZA - ES4160008 Birds Directive 6,540 protected area contained by site 6,540  
HOCES DEL RÍO RIAZA - ES4160104 Habitats Directive 5,185 protected area contained by site 5,185  

Habitats

IUCN habitat Habitat detail Extent (% of site)
Forest Broadleaved evergreen woodland  26%
Shrubland Sclerophyllous scrub, garrigue and maquis  -
Grassland Dry siliceous grassland  -
Rocky areas Inland cliffs  26%
Artificial - terrestrial Arable land; Ruderal land  26%

Land use

Land-use Extent (% of site)
agriculture -
nature conservation and research 26%
water management -

Protection status National None International Partial2,100 ha of IBA covered by Special Protection Area (Montejo de la Vega, 2,100 ha).

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Recommended citation  BirdLife International (2014) Important Bird Areas factsheet: Montejo de la Vega-Riaza canyon. Downloaded from http://www.birdlife.org on 28/11/2014

To provide new information to update this factsheet or to correct any errors, please email BirdLife